Molekula
Chloramphenicol USP CRS
Supplying 3,000+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Chloramphenicol USP Certified Reference Standard (CRS) is a broad-spectrum antibiotic used primarily in pharmaceutical research, analytical testing, and quality control for drug development. It serves as a precise standard for HPLC, GC, and other analytical methods to verify chloramphenicol identity and purity in formulations. This product has a CAS number of 56-75-7, molecular formula C11H12Cl2N2O5, and a molecular weight of 323.13 g/mol. It is stored at ambient conditions and carries a signal word of "Danger" due to its hazardous properties. Molekula supplies Chloramphenicol USP CRS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Chloramphenicol USP Certified Reference Standard (CRS) is a broad-spectrum antibiotic used primarily in pharmaceutical research, analytical testing, and quality control for drug development. It serves as a precise standard for HPLC, GC, and other analytical methods to verify chloramphenicol identity and purity in formulations. This product has a CAS number of 56-75-7, molecular formula C11H12Cl2N2O5, and a molecular weight of 323.13 g/mol. It is stored at ambient conditions and carries a signal word of "Danger" due to its hazardous properties. Molekula supplies Chloramphenicol USP CRS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Undamaged Packaging |
| Conclusion | Conforms to USP reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 150.5-151.5 °C |
| Solubility (other solvents) | Very soluble in acetone, chloroform, ethanol |
| log P (octanol/water) | 1.14 |
Source: PubChem CID 5959 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 90038364 |
| CAS Number | 56-75-7 |
| IUPAC Name | 2,2-dichloro-N-[(1R,2R)-1,3-dihydroxy-1-(4-nitrophenyl)propan-2-yl]acetamide |
| EC Number | 200-287-4 |
| Molecular Formula | C11H12Cl2N2O5 |
| Molecular Weight | 323.13 |
| Exact Mass | 322.0123 |
| SMILES | C1=CC(=CC=C1[C@H]([C@@H](CO)NC(=O)C(Cl)Cl)O)[N+](=O)[O-] |
| InChIKey | WIIZWVCIJKGZOK-RKDXNWHRSA-N |
| InChI | InChI=1S/C11H12Cl2N2O5/c12-10(13)11(18)14-8(5-16)9(17)6-1-3-7(4-2-6)15(19)20/h1-4,8-10,16-17H,5H2,(H,14,18)/t8-,9-/m1/s1 |
| PubChem CID | 5959 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2941400000 |
| Tariff Code | 2941400000 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
Hazard statements
- H317 May cause an allergic skin reaction
- H318 Causes serious eye damage
- H340 May cause genetic defects
- H350 May cause cancer
- H360FD May damage fertility. May damage the unborn child.
- H362 May cause harm to breast-fed children
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Alficetyn
- Chloramex
- chloramphenicol
- Chlornitromycin
- Chloroamphenicol
- Chlorocid
- D-Chloramphenicol
- Globenicol
- Levomicetina
- Levomycetin
Frequently asked questions
What is Chloramphenicol USP CRS used for?
Chloramphenicol USP CRS is primarily used as a reference standard for analytical testing, quality control, and method validation in pharmaceutical applications.
What is the chemical formula and molecular weight of Chloramphenicol USP CRS?
The chemical formula is **C₁₁H₁₂Cl₂N₂O₅** and the molecular weight is **323.13 g/mol**.
How should Chloramphenicol USP CRS be stored?
Store at **ambient temperature** in a dry, well-ventilated area, away from incompatible substances.
What grade of Chloramphenicol is this, and is it suitable for pharmaceutical applications?
This is **USP Certified Reference Standard (CRS) grade**, meeting strict purity and documentation requirements for pharmaceutical use.
Can Molekula supply Chloramphenicol USP CRS in bulk quantities?
Bulk quantities may be available upon request—contact Molekula’s sales team for pricing and lead times.
What documentation comes with an order of Chloramphenicol USP CRS?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **USP CRS compliance documentation**.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.